Exam Revision

Question 1

What are the 10 steps of the BI process?

Answer 1

1. Priority
2. Question
3. Information
4. Data
5. Visualisation
6. Data quality
7. Ethics
8. Metrics and Performance Indicators
9. Answers
10. More questions

Question 2

What are the three regression types?

Answer 2

1. Linear regression
2. Logistic regression
3. Ordinal regression

Question 3

What are two types of natural language processing analysis?

Answer 3

Sentiment and personality analysis.

Question 4

What are the four steps of Business Performance Management?

Answer 4

1. Get the data.
2. Use the data.
3. Optimise organisational performance.
4. Drive changes in organisational processes.

Question 5

What are two capabilities of data quality tools?

Answer 5

1. Profiling
2. Parsing, standardising and cleaning

Question 6

Why is information management crucial for BI?

Answer 6

• Flexibility
• Reliability
• Security
• Handle all types and volumes of data
• From all types of sources

Question 7

What are the advantages of data visualisation?

Answer 7

• Customisable
• Easy to understand
• Can be interactive
• Flexible
• Can handle large sets of data

Question 8

What are the two classification types?

Answer 8

1. Binary classification
2. Multi-class classification

Question 9

What is binary classification?

Answer 9

When data is categorised into one of two groups.

Question 10

What is multi-classed classification?

Answer 10

When data is categorised into one of three or more classes.